首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1383篇
  免费   44篇
  国内免费   54篇
电工技术   44篇
综合类   407篇
化学工业   83篇
金属工艺   14篇
机械仪表   35篇
建筑科学   240篇
矿业工程   97篇
能源动力   31篇
轻工业   123篇
水利工程   15篇
石油天然气   33篇
武器工业   1篇
无线电   36篇
一般工业技术   112篇
冶金工业   97篇
原子能技术   2篇
自动化技术   111篇
  2023年   11篇
  2022年   10篇
  2021年   20篇
  2020年   25篇
  2019年   20篇
  2018年   19篇
  2017年   20篇
  2016年   21篇
  2015年   33篇
  2014年   107篇
  2013年   108篇
  2012年   112篇
  2011年   121篇
  2010年   113篇
  2009年   101篇
  2008年   92篇
  2007年   108篇
  2006年   110篇
  2005年   92篇
  2004年   72篇
  2003年   56篇
  2002年   30篇
  2001年   14篇
  2000年   13篇
  1999年   11篇
  1998年   7篇
  1997年   7篇
  1996年   1篇
  1995年   6篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1991年   1篇
  1989年   1篇
  1987年   2篇
  1985年   1篇
  1983年   1篇
  1980年   1篇
  1979年   1篇
  1965年   1篇
  1963年   1篇
  1962年   2篇
排序方式: 共有1481条查询结果,搜索用时 15 毫秒
71.
In the Australian construction industry, large companies develop corporate social responsibility (CSR) in order to maintain an image of being a good corporate citizen. CSR relevant to the construction industry is defined including the following activities: moral obligation to be a good citizen; sustainability; reputation; relationship with employees and unions; relationship with suppliers and community representatives; and commitment to reporting on CSR. CSR is then examined through 85 interviews conducted with members of boards of directors, suppliers, employees, customers and community representatives of 17 large corporations. In order to be recognized as a socially responsible business, the corporations should: apply a corporate governance structure that takes into consideration working environment concerns; improve their sustainability, occupational health and safety measures, relationships with suppliers and commitment to local community protection and engagement.  相似文献   
72.
The 'European construction industry' is a fiction that tends to obscure its heterogeneous character and to mar studies and policies of the European Commission aimed at improving the internal and external 'competitiveness' of the sector. In order to assess the process of integration in Europe under the impact of its own dynamics as well as Union policies, this paper looks at the dynamics of the sector from three different aspects: as investment, production and labour process. It shows, in particular, the persistent regional and social disparities dividing the industry into separate entities. Political attention tends to focus on a small number of construction companies competing for a few projects which represent the European dimension. Yet, these companies still rely on their respective national bases and local labour from the place where construction is carried out. Persistent divisions between the states are also reflected in the low level of transnational organization of the construction industry. The policy of the European Commission generally ignores these divisions and attempts to establish principles intended to make a whole sector more 'competitive', while its component parts, operating at hugely different levels of productivity, do not even meet on the same market. This paper argues that, instead of trying in vain to introduce a 'knock-out' system of competition in the EU Member States, a targeted approach might help raise productivity in lagging regions and thus improve the basis of competitiveness on global markets.  相似文献   
73.
ABSTRACT

This paper explores the case of the historic harbour area of Naples, considered highly significant, due to its physical and cultural characteristics, with the aim of reflecting on the contemporary need for building renewed and synergic city–port relations in a sustainable perspective. Focusing on the physical and functional city–port integration, the study investigates Naples harbour planning policy between twentieth and twenty-first centuries in order to identify the limitations of older instruments and to exam the current proposal, finally suggesting perspectives for the future. The analysis highlights the fact that, in the port of Naples, with a landlord governance, the main obstacles to a more inclusive planning policy have been related to land use conflict between on one hand the public interest of the Port Authority and Municipality and the private interest of port operators on the other. In conclusion, the need for city–port plan integration is outlined as a central planning issue so as to combine the economic development of the harbour with social, cultural and ecological themes and to overcome the conflicts between the different actors involved in the complex planning process.  相似文献   
74.
以牙膏的中国专利申请数据作为分析样本,对申请量趋势、技术主题分布、申请人情况等进行分析,同时对重点申请人的技术主题分布、全球专利布局等进行着重分析,以期对我国本土牙膏企业提高竞争力以及进军海外市场提供参考。  相似文献   
75.
There is a widely accepted assumption in the construction literature that the industry is highly masculinised. However, there has been a surprising lack of empirical evidence around workers’ own attitudes towards masculinity in the sector. Addressing this lack of research, a survey to measure construction site operatives’ attitudes towards traditional masculinity ideology was undertaken in Australia using the Male Role Norms Inventory Scale-Short Form (MRNI-SF). It is found that the focus of attitudes towards masculinity in the construction industry may be shifting to reflect trends in the wider population and may be more inclusive and less hegemonic than has been previously argued. It is also found that the focus of masculinity in the construction industry is closely related to the physical and high-risk nature of work and that sexuality and humour may also be an important source of masculine identity. These results are important since they contribute a more nuanced understanding of the dimensions and exact nature of attitudes towards masculinity in the construction industry. It is concluded that future research into the impact of masculinity in areas such as gender diversity, safety and mental health would benefit from a more inclusive theoretical lens which recognises the dynamic nature of masculinity and which highlights the institutional legacies of past hegemonies that have to be challenged to move the industry forward.  相似文献   
76.
逄芹 《资源与产业》2006,8(3):78-80
当前,无论是在发达国家还是在发展中国家,中小企业集群对提升产业竞争力都有着十分重要的地位和作用。但在我国,人们更倾向于通过组建大企业集团来实现产业竞争力的提升。本文根据中小企业集群的定义,分别从经济学和地理学两个角度分析了中小企业集群在提升产业竞争力方面作用,从而得出扶植中小企业集群的发展势在必行的结论。  相似文献   
77.
王瑶 《同煤科技》2003,(4):36-37
建立以“产权明晰、权责明确、政企分开、管理科学”为特征的现代企业制度,是我国企业改革过程中制度创新的结果,是对马克思主义企业制度理论的发展。企业制度创新,是企业文化体系里一个极其重要的理念,是企业问题的一个极其重要的组成部分,是企业科学化管理的一个重要内容和体现。  相似文献   
78.
从建立地球系统科学观的前瞻视角,探讨资源战略、可持续发展及国际竞争力的内涵、特点。本文提出中国政府需要制定资源战略,研究资源承载和进行经济安全预测,建立资源综合开发利用机制以构建和谐社会。在经济全球化趋势下,结合资源禀赋,加强决策,提升综合国力和国际竞争能力是极其值得关注的问题。  相似文献   
79.
面向集团客户信息化服务的移动运营体系分析   总被引:1,自引:0,他引:1  
本文参照eTOM模型,从端到端的运营过程、面向集团客户的组织保障、面向集团客户的资源储备等几个方面,对移动运营商在信息运营时代面向集团客户的运营体系进行了初步的分析,旨在为向信息化转型中的移动运营商从流程、组织和资源开发等方面提供运营方面的一些参考建议.  相似文献   
80.
从产品市场需求、价格水平、原料供应、产品生产成本竞争力等方面分析了在湖北荆州地区建设煤制尿素项目的可行性.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号